Hoisting device



(No Model.) 3 SheetsSheet 1.

A. OLSON. HOISTING DEVICE. No. 482,648. Patented Sept. 13, 1892.

illllllllll (.No Model.) 3 Sheets-Sheet 2, A. OLSON.

HOISTING DEVICE.

No. 482,648. Patented Sept. 13, 1892.

wtqesnies. IQX/Eqtflli mL/QZ/ (Mm,

3 X I Z No Model.) 3 Sheets-Sheet 3.

A. OLSON.

HOISTING DEVICE.

No. 482,648. Patented Sept. 13, 1892.

m: nu'nms ansnsco Puma-mum, WASHINGTON, n. c.

UNITED STATES PATENT OFFICE. I

ANDREW OLSON, OF QUINCY, MASSACHUSETTS.

HOISTING DEVICE.

SPECIFICATION forming part of Letters Patent No. 482,648, datedSeptember 13, 1892.

Application filed April 11, 1892.

T0 aZZ whom it may concern.-

Be it known that I, ANDREW OLSON, a citizen of the United States, and aresident of Quincy, in the county of Norfolk and State of Massachusetts,have invented new and useful Improvements in Hoisting Devices, of whichthe following, taken in connection with the accompanying drawings, is aspecification.

This invention relates to improvements in hoisting devices,. and isparticularly well adapted for quarrying purposes in hoisting and movingblocks of stone, although it may to equal advantage be used for generall1oisting purposes, as will hereinafter be more fully shown anddescribed, reference being had to the accompanying drawings, wherein-Figure 1 represents a plan view of the improved hoisting device. Fig. 2represents a cross-section on the line X X, shown in Fig. 1. Fig. 3represents a cross-section on the line Y Y, also shown in Fig. 1; andFig. 4 repre sents a side elevation seen from Z in Fig. 1.

Similar letters refer to similar parts whereever they occur on thedifferent parts of the drawings.

The invention consists of a pair ofstationary parallel cables A and B,the ends of which are firmly secured to the wall or top of the quarry inany suitable manner.

One of the cables (the cable B in the drawings) is located at a suitableelevation above the other cable, (the cable A,) as shown in Figs. 2 and3, for a purpose as will hereinafter be described.

A and B are traveling rollers guided on the respective cables A and B,and said rollers are adapted to travel on said cables and are connectedby means of an inclined transverse cable O, as shown in Figs. 1 and 2.The roller A is connected by means of an endless rope a to a drum D andis guided near the ends of the cable A over suitable pulleys A and A asshown. The roller B is likewise connected by means of an endless rope I)to the said drum D, and is guided near the ends of the cable B oversuitable pulleys B" and B as shown in Fig. 1. It will thus be seen thatby rotating the drum D in opposite directions the cable C will be movedforward and back relative to the stationary cables A and B. The drum Dmay be rotated by power Serial No. 428,577- (No model.)

or by hand, as maybe most desirable, without departing from the essenceof my invention.

0' is a trolley adapted to be guided on the inclined cable 0, saidtrolley being preferably provided with a block and tackle composed of asheave O and pulleys 0 C, on which the hoisting-rope E is carried overthe duplex roller F (attached to the pulleyB) to the hoisting-drum G bymeans of the guide pulley or block H, as shown in Figs. 1 2, and 3. Thedrum G may be rotated by power or by hand, as may be most desirable,without departing from the essence of my invention.

For the purpose of moving the trolley C longitudinally on the inclinedcable 0, I attach to it a rope I, which is guided on the blocks F andII, and may be attached in any suitable manner to a cleat K orequivalent device during the hoisting operation.

C is a box or platform suspended from the block C and adapted to containthe load that is to be hoisted or conveyed from one part of the quarryto another, as may be desired.

In practice I prefer to secure the highest cable B, as represented inFig. 4-that is, I erect posts or frames L L, which are properly andfirmly braced in any suitable or wellknown manner. I prefer to providethe upper ends of such posts with rollers Z Z, over which the cable B iscarried and its ends socurely anchored to the ground in a firm andsubstantial manner, as shown in Fig. 4:. It will thus be seen that anypart of the quarry can be reached by moving the tranverse cable 0forward and back on the stationary cables A B and moving the trolley Oand the load suspended from it longitudinally on said cable 0. The loadis moved forward and back in the direction of the cablesAand B simply byrotating the drum D to the right or left, as the case may be, and payout or pull in the ropes E and I, according to the direction in whichthe cable O is being moved. After the cable 0 has been moved to thedesired position on the stationary cablesAB the load may be adjusted toany desired position on the transverse cable 0 and raised or lowered byslacking or taking in the ropes E and I.

The invention is'very simple in construction, strong and durable, andcan be put up for hoisting purposes of any kind at a less expense ascompared with the ordinary hoisting devices.

Havingthus fully described the nature, construction, and operation of myinvention, I wish to secure by Letters Patent and claim A hoistingapparatus consisting of a pair of longitudinal cables A and B, one ofwhich is arranged at a higher elevation than the other, the travelingrollers A and 13', mounted, respectively, on thelongitudin al cables, atransverse cable G, connected with said traveling rollers, a trolley Cmounted on the transverse cable and provided with a suspended block andtackle composed of a sheave O", pulleys C 0 and a hoisting-rope E, arope I, con-

